/*
 * Copyright 2007 National Bioinformatics Network
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package dgbgui.modeldocument.definition;

import java.util.LinkedHashSet;
import java.util.Set;

import dgbgui.modeldocument.Query;

public abstract class BooleanDefinition extends Definition implements Cloneable {
    
    public BooleanDefinition(Set<Query> children) {
        m_children = new LinkedHashSet<Query>(children);
    }
    
    public LinkedHashSet<Query> getChildren() {
        return m_children;
    }

    public void setChildren(LinkedHashSet<Query> children) {
        m_children = children;
    }

    public void addChild(Query node) {
        m_children.add(node);
    }
    
    /** 
     * Each boolean node should return it's dgbQL representation
     */
    protected abstract String getdgbQLBooleanString();
    
    public String getdgbQLString() {
        Set<Query> children = getChildren();
        String dgbQLString = "";
        int index = 0;
        for ( Query node : children ) {
            if ( index > 0 ) {
                dgbQLString += " " + getdgbQLBooleanString() + " ";
            }
            dgbQLString += node.getDefinition().getdgbQLString();
            ++index;
        }
        return dgbQLString;
    }
    
    // ------------------- Serialization -------------
    
    /**
     * First serilization version
     */
    private static final long serialVersionUID = 1L;
    
    
    // ---------------- Fields -----------------
    
    /// Order is important so don't use just a set
    private LinkedHashSet<Query> m_children;
    
    

}
